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From "ASF GitHub Bot (JIRA)" <>
Subject [jira] [Commented] (BEAM-1611) Stateful ParDo broken in Dataflow batch
Date Wed, 08 Mar 2017 21:09:38 GMT


ASF GitHub Bot commented on BEAM-1611:

GitHub user kennknowles opened a pull request:

    [BEAM-1611] Explicitly GBK before stateful ParDo in Dataflow batch

    Be sure to do all of the following to help us incorporate your contribution
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     - [ ] Make sure the PR title is formatted like:
       `[BEAM-<Jira issue #>] Description of pull request`
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    R: @aaltay 
    This is a cherry-pick of the principle change from #2147. It requires a compatible Dataflow
worker, which I will add here when ready.

You can merge this pull request into a Git repository by running:

    $ git pull batch-state-0.6.0

Alternatively you can review and apply these changes as the patch at:

To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:

    This closes #2198
commit 035b6f6b87c112213d040b7b8cbb08e446c7d7a5
Author: Kenneth Knowles <>
Date:   2017-03-02T22:29:56Z

    Explicitly GBK before stateful ParDo in Dataflow batch


> Stateful ParDo broken in Dataflow batch
> ---------------------------------------
>                 Key: BEAM-1611
>                 URL:
>             Project: Beam
>          Issue Type: Bug
>          Components: runner-dataflow
>            Reporter: Kenneth Knowles
>            Assignee: Kenneth Knowles
>            Priority: Blocker
>             Fix For: 0.6.0
> The needed shuffle is not performed in batch mode. Confirmed that it is performed in
> Filing here as the quickest fix is to work around with transform overrides in Beam, analogous
to those in the direct runner.

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